diff --git a/jz.py b/jz.py
new file mode 100644
index 0000000..177a5c2
--- /dev/null
+++ b/jz.py
@@ -0,0 +1,27 @@
+def convert_base(num, from_base, to_base):
+    # 将输入数从原始进制转换为十进制
+    decimal_num = int(str(num), from_base)
+    
+    # 将十进制数转换为目标进制
+    if decimal_num == 0:
+        return '0'
+    
+    digits = []
+    while decimal_num > 0:
+        remainder = decimal_num % to_base
+        if remainder >= 10:
+            digits.append(chr(ord('A') + remainder - 10))
+        else:
+            digits.append(str(remainder))
+        decimal_num //= to_base
+    
+    # 反转数字列表并连接成字符串
+    result = ''.join(digits[::-1])
+    return result
+
+# 示例：将二进制数1011转换为十六进制数
+num = "1011"
+from_base = 2
+to_base = 16
+converted_num = convert_base(num, from_base, to_base)
+print(converted_num)  # 输出结果为B